Elevating-truck.



.PATENTED MAY 10, 1904.

W. M. SCOTT.

' ELEVATING TRUCK.

APPLICATION FILED JULY 20, 1903;

N0 MODEL.

avwemfoz WZsZeyMonroeScott,

M eltkozmago wimwow Patented. May 10, 1904.

UNITED STATES PATENT OFFICE.

WESLEY MONROE SCOTT, OF COLUMBUS, OHIO, ASSIGNOR TO THE P. HAYDEN SADDLERY HARDWARE (30., A CORPORATION OF OHIO.

ELEVATlNG-TRUCK.

SPECIFICATION forming part of Letters Patent No. 7 59,558, dated May 10, 1904.

Application filed July 2D, 1903- Serial No. 168,307. (No model.)

To all whom it may concern.-

Be it known that I, VVEsLnY MONROE Soo'r'r, a citizen of the United States, residing at O0- lumbus, in the county of Franklin and State of Ohio, have invented certain new and'useful Improvements in Elevating-Trucks; and I do hereby declare the following to be a full, clear,

and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention, relating more especially to cars or trucks having vertically-movable platforms for use in brick-yards, macl1ineshops, and other places where heavy loads are to be transported and raised or lowered, has for its object the provision of an improved, simple, cheap, and easily-operated device of this kind.

The invention is embodied in the construction hereinafter described, the particular features of noveltybeing pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation partially in section. Fig. 2 is an end View. Fig. 3 is a detail of the sector and pinions and the shaft to which they are secured.

1 designates the stationary longitudinal sills, which extend between the axles 2 and are supported on boxes 3, in which the axles turn. Bolted on the sills above the axles are four hollow standards at, one at each corner of the truck. The members of each pair of standards at the ends of the truck are preferably cast with a connecting cross-beam 4 to brace the standards at their bases and afford a support for a wormshaft hereinafter referred to.

Sliding vertically in each standard is a rackbar leg 5, secured to or supporting at its upper end the platform 6, upon which the pallet containing brick or other article to be lifted is placed. Journaled transversely of the truck and to each pair of the standards 4: is a shaft 7, having keyed thereon at each end a pinion 7 and at its middle a sector 7 b of somewhat longer radius than the pinions. The pinion 7 engages the rack-bar legs 5, and the sectors are engaged by worms 8 of the same pitch on a shaft 8, journaled longitudinally of the car on the cross-beams 4E. The corresponding sides of the hollow standards 4-. are open to permit engagement of the pinions 7 with the legs 5.

The worm-shaft 8 is furnished with a handled wheel 9, by means of which the sectors can be operated.

The operation is as follows: By turningthe hand-wheel 9 in the proper direction the sectors are oscillated in one direction or the other according to the direction in which the shaft 8 is turned, thus imparting a rotary movement to the pinion and a rectilinear vertical move-- ment to the legs 5, whereupon the platform is raised or lowered, as the case may be. Because the radius of the hand-wheel and sectors 7 is large as compared with that of the pinions 7 the application of slight power to the handwheel 9 will lift a heavy load on the platform. With this construction it will also be observed that the power is exerted uniformly whatever be the position of the platform- The use of a worm-shaft 8 in connection with the sectors obviates the necessity of employing pawls and ratchets to lock and prevent the return of the platform after it is raised. W ith' the present construction the platform is locked at any point to which it is elevated and may be lowered instantly with out first manipulating ratchet-pawls.

While the device shown and described is especially intended for use in brick-yards, it will also be useful in other places where heavy articles are to be transported and raised or lowered.

Some slight deviations from the construction shown in the drawings can be made. For example, I see no special reason why the fixed platform might not in some cases be omitted and a palette supported directly on the upper ends of the rack-bar legs. In this case, however, the pallet becomes the platform.

What I claim, and desire to secure by Letters Patent, is

1. In an elevating truck or car, the combination with the truck-frame of standards, rackbars sliding therein, a platform or frame sup ported on the upper ends of said rack-bars, shafts containing pinions to engage the rackbars, sectors of greater radius than said pinions on said shafts, and a Worm-shaft to engage and operate said sectors.

2. In an elevating truck or car, the combination With the truck-frame of the standards located at the four corners of the truck-frame, rack-bars sliding vertically in said standards, a platform supported on the upper ends of said rack-bars, shafts transverse the truck con taining pinions to engage the rackbars, toothed sectors of greater radius than said pinions on said shafts, and a Worm-shaft extending longitudinally of the car to engage and operate said sectors.

3. In an elevating truck or car, the combination With the truck-frame of the standards 

